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Njabulo Stainless is one of the reputed manufacturers and suppliers of high-grade stainless steel in Cape Town, South Africa. We specialize in Stainless Steel 420 sheets and plates. It provides a hard-wearing, corrosion-resistant solution for a number of industries. A commitment to deliver superior products along with exceptional customer service has won us a place as a dependable supplier in this region. Njabulo Stainless is known for a variety of sizes and finishes that ensure our clients get the best for their money and satisfaction in every order.
Stainless Steel 420 is a type of martensitic stainless steel with the majority percentage being 12-14% chromium and with a carbon excess of 0.15%. Provides high strength, as well as moderate corrosion resistance. Its hardness, corrosion, and thermal stability are also remarkable. SS 420 benefits through good machinability, great abrasion resistance, and in the presence of corrosive elements. This grade of stainless steel is utilized in a number of product ranges like molds, surgical tools, and other industrial machines.
Stainless Steel Sheets and Plates Specification : ASTM A240 / ASME SA240
Dimension Standard : JIS, AISI, ASTM, GB, DIN, EN, etc
Width : 1000mm, 1219mm, 1500mm, 1800mm, 2000mm, 2500mm, 3000mm, 3500mm, etc
Length : 2000mm, 2440mm, 3000mm, 5800mm, 6000mm, etc
Thickness : 0.3 mm to 120 mm
Form : Coils, Foils, Rolls, Plain Sheet, Shim Sheet, Perforated Sheet, Chequered Plate, Strip, Flats, Blank (Circle), Ring (Flange) etc.
Surface Finishing : Hot rolled plate (HR), Cold rolled sheet (CR),2B, 2D, BA, NO.1, NO.4, NO.8, 8K, mirror, Chequered, embossed, hair line, sand blast, Brush, etching, SATIN (Met with Plastic Coated) etc.
| Grade | C | Mn | Si | P | S | Cr | Ni |
|---|---|---|---|---|---|---|---|
| 420 | 0.15 max | 1.00 max | 1.00 max | 0.04 max | 0.03 max | min: 12.0 max: 14.0 | – |
| Tempering Temperature (°C) | Tensile Strength (MPa) | Yield Strength 0.2% Proof (MPa) | Elongation (% in 50mm) | Hardness Brinell (HB) |
|---|---|---|---|---|
| Annealed * | 655 | 345 | 25 | 241 max |
| 399°F (204°C) | 1600 | 1360 | 12 | 444 |
| 600°F (316°C) | 1580 | 1365 | 14 | 444 |
| 800°F (427°C) | 1620 | 1420 | 10 | 461 |
| 1000°F (538°C) | 1305 | 1095 | 15 | 375 |
| 1099°F (593°C) | 1035 | 810 | 18 | 302 |
| 1202°F (650°C) | 895 | 680 | 20 | 262 |
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These are stainless steel 420 hot rolled sheets that can offer excellent corrosion resistance and a durability that no other material could. They range from 3mm to 12mm thickness and are most suitable for any application that calls for high strength and good machinability.
Stainless Steel 420 cold rolled plates offer excellent corrosion resistance and a bright finish. These plates are available in thicknesses ranging from 0.5mm to 6mm and are used in precision applications where dimensional accuracy and fine surface finish are critical.
Stainless Steel 420 chequered plates combine excellent corrosion resistance with a textured surface for slip resistance. They are available in thicknesses from 2mm to 8mm and various patterns, and are widely used in flooring and safety applications.
Stainless Steel 420 perforated sheets are corrosion-resistant and have uniform holes for ventilation and aesthetics. They are available in thicknesses from 1mm to 5mm and are used in filtering and architectural applications.
Stainless Steel 420 shim sheets are very corrosion resistant and precise. Generally available in the thickness of 0.1mm to 1mm, these are used for precise spacing and alignment in many engineering and manufacturing applications.
Stainless Steel 420 polished plates have excellent corrosion resistance and a reflective finish. Available in thicknesses ranging from 1mm to 10mm, they are used for decorative and high-visibility applications where aesthetic quality and resistance to oxidation are critical.
Njabulo Stainless is highly concerned with the customer experience and delivers that with adequate documentation of its premium-quality Stainless Steel 420 Sheets and Plates. We deliver to our clients the necessary documents like a commercial invoice, packing list, fumigation certificate, heat treatment chart, quality assurance plan, and NABL-approved lab test report. These documents validate the genuineness and superior quality of our products and, therefore, ensure confidence in our valued customers. In addition, we provide our Stainless Steel 420 Sheets and Plates with different test certificates, including MTC according to EN 10204/3.1b, PMI Test Certificate, 100% radiography test report, and Third Party Inspection Certificate, reflecting our customer-first approach and dedication to excellence.
Stainless Steel 420 is a high carbon martensitic stainless steel known for its durability and corrosion resistance. It is commonly used in applications requiring wear resistance and strength to produce cutlery, surgical instruments and valves Its excellent polishing ability makes it ideal for high decorative and finishing applications. In addition, stainless steel 420 is used in minimal scrap, including tools and dies, as well as machinery and automotive parts that require durability and strength.
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